1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License, version 2, as 4 * published by the Free Software Foundation. 5 * 6 * This program is distributed in the hope that it will be useful, 7 * but WITHOUT ANY WARRANTY; without even the implied warranty of 8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 * GNU General Public License for more details. 10 * 11 * You should have received a copy of the GNU General Public License 12 * along with this program; if not, write to the Free Software 13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14 * 15 * Copyright IBM Corp. 2008 16 * 17 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18 */ 19 20 #ifndef __POWERPC_KVM_PPC_H__ 21 #define __POWERPC_KVM_PPC_H__ 22 23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header 24 * dependencies. */ 25 26 #include <linux/mutex.h> 27 #include <linux/timer.h> 28 #include <linux/types.h> 29 #include <linux/kvm_types.h> 30 #include <linux/kvm_host.h> 31 #ifdef CONFIG_PPC_BOOK3S 32 #include <asm/kvm_book3s.h> 33 #else 34 #include <asm/kvm_booke.h> 35 #endif 36 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER 37 #include <asm/paca.h> 38 #endif 39 40 enum emulation_result { 41 EMULATE_DONE, /* no further processing */ 42 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ 43 EMULATE_DO_DCR, /* kvm_run filled with DCR request */ 44 EMULATE_FAIL, /* can't emulate this instruction */ 45 EMULATE_AGAIN, /* something went wrong. go again */ 46 }; 47 48 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 49 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 50 extern char kvmppc_handlers_start[]; 51 extern unsigned long kvmppc_handler_len; 52 extern void kvmppc_handler_highmem(void); 53 54 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); 55 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 56 unsigned int rt, unsigned int bytes, 57 int is_bigendian); 58 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, 59 unsigned int rt, unsigned int bytes, 60 int is_bigendian); 61 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 62 u64 val, unsigned int bytes, int is_bigendian); 63 64 extern int kvmppc_emulate_instruction(struct kvm_run *run, 65 struct kvm_vcpu *vcpu); 66 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); 67 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 68 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); 69 70 /* Core-specific hooks */ 71 72 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 73 unsigned int gtlb_idx); 74 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); 75 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 76 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); 77 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); 78 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 79 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 80 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 81 gva_t eaddr); 82 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 83 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 84 85 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, 86 unsigned int id); 87 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 88 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 89 extern int kvmppc_core_check_processor_compat(void); 90 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, 91 struct kvm_translation *tr); 92 93 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 94 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 95 96 extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu); 97 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); 98 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); 99 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 100 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 101 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 102 struct kvm_interrupt *irq); 103 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu, 104 struct kvm_interrupt *irq); 105 106 extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, 107 unsigned int op, int *advance); 108 extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs); 109 extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt); 110 111 extern int kvmppc_booke_init(void); 112 extern void kvmppc_booke_exit(void); 113 114 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); 115 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); 116 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); 117 118 extern long kvmppc_alloc_hpt(struct kvm *kvm); 119 extern void kvmppc_free_hpt(struct kvm *kvm); 120 extern long kvmppc_prepare_vrma(struct kvm *kvm, 121 struct kvm_userspace_memory_region *mem); 122 extern void kvmppc_map_vrma(struct kvm *kvm, 123 struct kvm_userspace_memory_region *mem); 124 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); 125 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 126 struct kvm_create_spapr_tce *args); 127 extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, 128 struct kvm_allocate_rma *rma); 129 extern struct kvmppc_rma_info *kvm_alloc_rma(void); 130 extern void kvm_release_rma(struct kvmppc_rma_info *ri); 131 extern int kvmppc_core_init_vm(struct kvm *kvm); 132 extern void kvmppc_core_destroy_vm(struct kvm *kvm); 133 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, 134 struct kvm_userspace_memory_region *mem); 135 extern void kvmppc_core_commit_memory_region(struct kvm *kvm, 136 struct kvm_userspace_memory_region *mem); 137 138 /* 139 * Cuts out inst bits with ordering according to spec. 140 * That means the leftmost bit is zero. All given bits are included. 141 */ 142 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) 143 { 144 u32 r; 145 u32 mask; 146 147 BUG_ON(msb > lsb); 148 149 mask = (1 << (lsb - msb + 1)) - 1; 150 r = (inst >> (63 - lsb)) & mask; 151 152 return r; 153 } 154 155 /* 156 * Replaces inst bits with ordering according to spec. 157 */ 158 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) 159 { 160 u32 r; 161 u32 mask; 162 163 BUG_ON(msb > lsb); 164 165 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); 166 r = (inst & ~mask) | ((value << (63 - lsb)) & mask); 167 168 return r; 169 } 170 171 void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 172 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 173 174 void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 175 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 176 177 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); 178 179 #ifdef CONFIG_KVM_BOOK3S_64_HV 180 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 181 { 182 paca[cpu].kvm_hstate.xics_phys = addr; 183 } 184 185 extern void kvm_rma_init(void); 186 187 #else 188 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 189 {} 190 191 static inline void kvm_rma_init(void) 192 {} 193 #endif 194 195 #endif /* __POWERPC_KVM_PPC_H__ */ 196